From: Ahmed Bougacha <ahmed.bougacha@gmail.com>
Date: Thu, 5 Feb 2015 18:15:59 +0000 (+0000)
Subject: [CodeGen] Add isLoadExtLegalOrCustom helper to TargetLowering.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=2e485786c7fac05d31372042583b56c8b782af2a;p=oota-llvm.git

[CodeGen] Add isLoadExtLegalOrCustom helper to TargetLowering.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228322 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/llvm/Target/TargetLowering.h b/include/llvm/Target/TargetLowering.h
index a2d1c4caf20..12c4f9bb547 100644
--- a/include/llvm/Target/TargetLowering.h
+++ b/include/llvm/Target/TargetLowering.h
@@ -574,6 +574,14 @@ public:
       getLoadExtAction(ExtType, ValVT, MemVT) == Legal;
   }
 
+  /// Return true if the specified load with extension is legal or custom
+  /// on this target.
+  bool isLoadExtLegalOrCustom(unsigned ExtType, EVT ValVT, EVT MemVT) const {
+    return ValVT.isSimple() && MemVT.isSimple() &&
+      (getLoadExtAction(ExtType, ValVT, MemVT) == Legal ||
+       getLoadExtAction(ExtType, ValVT, MemVT) == Custom);
+  }
+
   /// Return how this store with truncation should be treated: either it is
   /// legal, needs to be promoted to a larger size, needs to be expanded to some
   /// other code sequence, or the target has a custom expander for it.